@misc{indiciaeaa90c641d17a,
  title = {Defect vibrational modes in germanium crystals.},
  author = {PJ Lin-Chung and CY Fong},
  year = {1987},
  doi = {10.1103/physrevb.35.9195},
  url = {https://pubmed.ncbi.nlm.nih.gov/9941317/},
  note = {Source identifier: 9941317}
}